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3. Abdul, while driving to school, computes the average speed for his trip to be 20 km.h–1. On his

1. An athlete completes one round of a circular track of diameter 200 m in 40 s. WhaT

Ex 12.3 Q5-7|| Area related to circles|| Kwatra tuition center||

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Ex 12.3 Q8-12|| Area related to circles || Kwatra tuition center||

2. Multiply and reduce to lowest form (if possible) :

5. A mixture is made up of a) Two or more elements b) Two or more compounds c) Both

Ch-2|| Polynomial|| 3 Marks important Questions|| Kwatra tuition Center

Ex 12.3 Q1-4|| Area related to Circles|| Kwatra Tuition Center||

2. A satellite of mass m is in a circular orbit around a planet of mass M and radius R. If the

28 B. Comment on the following statements: (i) Bee sting is treated with baking soda paste whereas

7. Two-point masses, m1 and m2, are located at a distance of 5 meters from each other. What is the

9. A projectile is launched vertically upwards from the surface of the Earth with a speed of 100

8. The mass of the Earth is approximately 6 x 1024 kg and its radius is approximately 6.4 x 106

8. A window is in the form of a rectangle surmounted by a semicircular opening. The total perimeter

5. A small object of mass m is released from rest at a height h above the surface of a planet.

Q.38. Arka bought two cages of birds: Cage-I contains 5 parrots and 1 owl and Cage –II contains

Q.35. (b) Find the image of the point (1,2,1) with respect to the line x-3/1= y+1/2= z-1/3

Q.36. Ramesh, the owner of a sweet selling shop, purchased some rectangular card board

19. The interval in which y = x2 e–x is increasing is(A) (– ∞, ∞) (B) (– 2, 0) (C) (2, ∞) (D) (0, 2)

10. Raju’s father’s age is 5 years more than three times Raju’s age. Find Raju’s age, if his father

Q.31. (b) A random variable X can take all non – negative integral values and the probability that

11. The gravitational potential energy of an object of mass m at a height h above the surface of